SBIR Phase II: High Performance Lead-Free Piezoelectric Ceramics

这个小企业创新研究第二阶段项目建议专注于形成晶粒取向（纹理）无铅压电和介电陶瓷，用于各种电瓷和换能器应用。该项目的总体目标是生产具有高压电性能的无铅陶瓷，并证明这些材料可用于现有的致动器/传感器设计，特别是目前使用铅基陶瓷的应用。更广泛的影响将是消除基于铅的组合物，例如锆钛酸铅（PZT），没有市售的无铅组合物具有与PZT相当的性能。除了商业影响外，铅是有毒的，因此含铅的商业产品在地方和全球层面上都存在严重的健康和环境危害。因此，为了维持压电换能器和传感器市场的增长，同时满足许多环境和健康需求，存在对具有与铅基组合物相当的性质的高性能无铅压电陶瓷的实质性需求。

This Small Business Innovation Research Phase II project proposes to focus on the formation of grain-oriented (textured) lead-free piezoelectric and dielectric ceramics for various electroceramic and transducer applications. The overall objective of this project will be to produce lead-free ceramics with high piezoelectric performance, and demonstrate that these materials can be used in existing actuator/transducer designs, especially for applications currently using lead-based ceramics. The broader impacts will be the elimination of lead-based compositions, such as lead zirconate titanate (PZT), there are no commercially available lead-free compositions that possess comparable properties to PZT. Beyond the commercial effect, lead is known to be toxic, so commercial products containing lead present serious health and environmental hazards at both a local and global level. Therefore, there is a substantial need for a high performance, lead-free piezoelectric ceramic with properties comparable to lead-based compositions in order to sustain the growth of piezoelectric transducers and sensor market, while meeting the many environmental and health needs.